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Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (19): 96-101.doi: 10.11924/j.issn.1000-6850.casb18020079

Special Issue: 耕地保护

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Dynamic Monitoring of Desertification Land in Ningxia

  

  • Received:2018-02-24 Revised:2018-05-15 Accepted:2018-05-24 Online:2018-07-11 Published:2018-07-11

Abstract: The paper aims to master the dynamic development tendency of the desertification land in Ningxia, to provide data supporting for desertification land control. The desertification land in Ningxia was monitored by means of field investigation and remote sensing, and the status and classification of the desertification land was mapped by using ArcGIS. The results showed that: the total area of desertification land in Ningxia was 1120.3 × 103 hm2 in 2014, and the area was reduced by 135.7×103 hm2 from 1994 to 2014, which decreased by 10.8% during these 20 years. The general trend of land desertification development was from extremely severe to severe to moderate to mild, and the mild, moderate, severe and extremely severe desertification areas was 752.3×103, 208.0×103, 81.0×103, 78.9×103 hm2, respectively. The most sensitive areas of land desertification were located in Dawukou, Pingluo, Helan, Yinchuan, northern Lingwu, Zhongning and Shapotou district, which distributed in western Sohyet 240 mm where future ecological environment monitoring, evaluation and management should be enhanced.